Répondre :
bonjour
f (x) = 4 x² - 9 + ( 2 x + 3 ) ( x - 1 )
f (x) = ( 2 x - 3 ) ( 2 x + 3 ) + ( 2 x + 3 ) ( x - 1 )
f (x ) = ( 2 x + 3 ) ( 2 x - 3 + x - 1 )
f (x) = ( 2 x + 3 ) ( 3 x - 4 )
f ( 0 ) = 3 * - 4 = - 12
bonne soirée
bonjour
f (x) = 4 x² - 9 + ( 2 x + 3 ) ( x - 1 )
f (x) = ( 2 x - 3 ) ( 2 x + 3 ) + ( 2 x + 3 ) ( x - 1 )
f (x ) = ( 2 x + 3 ) ( 2 x - 3 + x - 1 )
f (x) = ( 2 x + 3 ) ( 3 x - 4 )
f ( 0 ) = 3 * - 4 = - 12
bonne soirée